* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    background-color: #242424;
}

#logo {
    margin-top: 70px;
    font-size: 58px;
    width: 80%;
    text-align: center;
    color: #fff;
    font-weight: 700;
}

#init {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column
}

.title {
    width: 200px;
    height: 50px;
    background-color: #00b5e5;
    text-align: center;
    line-height: 50px;
    margin-top: 35%;
    color: #fff;
    font-weight: 700;
    border-radius: 25px;
    cursor: pointer;
}

.last-title {
    margin-top: 40%;
    font-size: 6px;
    width: 100%;
    height: 50px;
    color: #fff;
    line-height: 50px;
    text-align: center;
}


/* 五十音看字念音 */

#look-font-card {
    display: none
}

.fontYinCard {
    display: none;
}

.font-card {
    color: #fff;
    font-size: 100px;
    width: 200px;
    height: 200px;
    text-align: center;
    line-height: 200px;
    border-radius: 50px;
    background-color: #1e3799;
    margin-top: 25px;
    cursor: pointer;
}

.yin-card {
    visibility: hidden;
    color: #fff;
    font-size: 36px;
    width: 200px;
    height: 50px;
    text-align: center;
    line-height: 50px;
    border-radius: 5px;
    margin-top: 100px;
}

.next {
    width: 200px;
    height: 50px;
    background-color: #00b5e5;
    text-align: center;
    line-height: 50px;
    margin-top: 20%;
    color: #fff;
    font-weight: 700;
    border-radius: 25px;
    cursor: pointer;
}

.break {
    width: 200px;
    height: 50px;
    background-color: #00b5e5;
    text-align: center;
    line-height: 50px;
    margin-top: 20%;
    color: #fff;
    font-weight: 700;
    border-radius: 25px;
    cursor: pointer;
}


/* 五十音听音写字 */


#listen-font-card {
    display: none
}

.listen-font-card {
    color: #fff;
    font-size: 100px;
    width: 200px;
    height: 200px;
    text-align: center;
    line-height: 200px;
    border-radius: 50px;
    background-color: #1e3799;
    margin-top: 50%;
    cursor: pointer;
}

.repeat {
    width: 200px;
    height: 50px;
    background-color: #00b5e5;
    text-align: center;
    line-height: 50px;
    margin-top: 20%;
    color: #fff;
    font-weight: 700;
    border-radius: 25px;
    cursor: pointer;
}

/* 浊音看字念音 */
#look-zhuo-font-card{
    display: none
}
.zhuoFontYinCard{
    display: none;
}
.zhuo-font-card {
    color: #fff;
    font-size: 100px;
    width: 200px;
    height: 200px;
    text-align: center;
    line-height: 200px;
    border-radius: 50px;
    background-color: #1e3799;
    margin-top: 25px;
    cursor: pointer;
}

.zhuo-yin-card {
    visibility: hidden;
    color: #fff;
    font-size: 36px;
    width: 200px;
    height: 50px;
    text-align: center;
    line-height: 50px;
    border-radius: 5px;
    margin-top: 100px;
}

/* 浊音听音写字 */

#listen-zhuo-font-card {
    display: none
}
.listen-zhuo-font-card{
    color: #fff;
    font-size: 100px;
    width: 200px;
    height: 200px;
    text-align: center;
    line-height: 200px;
    border-radius: 50px;
    background-color: #1e3799;
    margin-top: 50%;
    cursor: pointer;
}


/* 长音规则 */
#look-chang-font-card{
    display: none
}
.chang-font-card{
    padding: 50px;
    width: 251px;
    height: 200px;
    background-color: #1e3799;
    border-radius: 25px;
    color: #fff;
    font-size: 1em;
    margin: 150px auto;
}

.break1{
    margin: auto;
}
